390040345 has 8 divisors (see below), whose sum is σ = 468187200. Its totient is φ = 311939760.

The previous prime is 390040337. The next prime is 390040351. The reversal of 390040345 is 543040093.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 390040345 - 2³ = 390040337 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10980 + ... + 30010.

It is an arithmetic number, because the mean of its divisors is an integer number (58523400).

Almost surely, 2^390040345 is an apocalyptic number.

It is an amenable number.

390040345 is a deficient number, since it is larger than the sum of its proper divisors (78146855).

390040345 is a wasteful number, since it uses less digits than its factorization.

390040345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23135.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 390040345 is about 19749.4391059594. The cubic root of 390040345 is about 730.6395502438.

The spelling of 390040345 in words is "three hundred ninety million, forty thousand, three hundred forty-five".